High quality hardened aluminium girder section levels with three permanently fixed solid acrylic cylindrical shock resistant UV resistant vials one horizontal one vertical with side view feature and one 45° vial Levels electrostatically epoxy powder coated and baked for maximum protection Metricimperial rule on top edge Fitted with shock absorbing end caps V-Groove for levelling pipework Accuracy 175mm per 1M 01° in standard position
